Installation guide

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1-2. SELECTING THE INSTALLATION LOCATION
INDOOR UNIT
* Where airflow is not blocked.
+ Where cool air spreads over the entire room.
* Rigid wall without vibration.
+ Where it is not exposed to direct sunshine.
+ Where easily drained.
* Ata distance 3 ft. (1 m) or more away from your TV
and radio. Operation of the air conditioner may inter-
fere with radio or TV reception. An amplifier may be
required for the affected device.
* Ina place as far away as possible from fluorescent
and incandescent lights (so the infrared remote control
can operate the air conditioner normally).
* Where the air filter can be removed and replaced easily.
Note:
Install indoor unit at a high position on the wall where air
can distribute over the entire room.
* Where itis easy to operate and easily visible.
* Where children cannot touch it.
* Select a position about 4 ft. (1.2 m) above the floor and
check that signals from the remote controller are surely
received by the indoor unit from that position (beep’ or
‘beep beep’ receiving tone sounds). After that, attach
remote controller holder to a pillar or wall and install
wireless remote controller.
1-3. SPECIFICATIONS
1-3-1. POWER SUPPLY AND INDOOR/OUTDOOR WIRE CONNECTION
* Power should be taken from an exclusive branched circuit.
* Wiring work should be based on applicable technical standards.
* Wiring connections should be made following the diagram.
* Screws should be tightened so they will not loosen.
Connecting wires and connecting ground wire
« Use solid conductor AWG14 or stranded conductor AWG14.
* Use double insulated copper wire with GOOV insulation.
* Use copper conductors only.
* Follow local electrical code.
Power supply cable and ground wire
* Use solid or stranded conductor AWG14.
* Use copper conductors only.
* Follow local electrical code.
Note:
In rooms where inverter type fluorescent lamps are used,
the signal from the wireless remote controller may not be
received.
+ Where itis not exposed to strong wind.
+ Where airflow is good and dustless.
* Where neighbours are not annoyed by operation
sound or hot air.
* Where rigid wall or support is available to prevent the
increase of operation sound or vibration.
* Where there is no risk of combustible gas leakage.
+ When installing the unit at a high level, be sure to se-
cure the unit legs.
+ Where it is at least 10 ft. (3 m) away from the antenna
of TV set or radio. Operation of the air conditioner may
interfere with radio or TV reception in areas where re-
ception is weak. An amplifier may be required for the
affected device.
* Install the unit horizontally.
* Please install it in an area not affected by snowfall or
blowing snow. In areas with heavy snow, please install
a canopy, a pedestal and/or some baffle boards.
Electrical specifications
Note:
* tis advisable to make a piping loop near outdoor unit
so as to reduce vibration transmitted from there.
* For increased efficiency, install the outdoor unit in a
location where continuous direct sunlight or excessive
water can be avoided as much as possible.
Note:
When operating the air conditioner in low outside
temperature, be sure to follow the instructions described
below.
* Never install the outdoor unit in a place where its air
inlet/outlet side may be exposed directly to wind.
* To prevent exposure to wind, install the outdoor unit
with its air inlet side facing the wall.
* To prevent exposure to wind, it is recommended to in-
stall a baffle board on the air outlet side of the outdoor
unit.
Avoid the following places for installation where air
conditioner trouble is liable to occur.
* Where flammable gas could leak.
* Where there is much machine oil.
* Salty places such as the seaside.
« Where sulfide gas is generated such as a hot
spring.
« Where there is high-frequency or wireless equipment.
Note:
When the indoor unit is powered from the outdoor unit, a disconnect switch needs to be
installed to power supply circuit (between indoor and outdoor unit) depending on local
code.
1-3-2. REFRIGERANT PIPES
* Ensure that the 2 refrigerant pipes are insulated to prevent condensation.
* Refrigerant pipe bending radius must be 4 in. (100 mm) or more.
A\ CAUTION
Be sure to use the insulation of specified thickness. Excessive thickness may cause
incorrect installation of the indoor unit and lack of thickness may cause dew drippage.
* This unit has flared connections on both indoor and outdoor sides.
* Remove the outdoor units valve cover, then connect the pipe.
* Refrigerant pipes are used to connect the indoor and outdoor units.
* Be careful not to crush or bend the pipe in pipe bending.
* Refrigerant adjustment... lf pipe length exceeds 25 ft. (7
(R410A) charge is required.
(The outdoor unit is charged with refrigerant for pipe length up to 25 ft. [7 m])
MSz-
MSzZ- A15M7NA MS- MS-
MODEL Aogi2NA| mMSY- | Aogwa | A12WA
A15M7NA
INDOOR UNIT
Power supply (V, PHASE, Hz) 208/230, 1, 60 115, 1, 60
Min. Circuit Ampacity 10 | 1.0 12 | 1.2
Fan motor (F.L.A.) 0.76 0.95
OUTDOOR UNIT
Power supply (V, PHASE, Hz) 208/230, 1, 60 115, 1, 60
Max. Fuse size (time delay) (A) 15 15 15 20
Min. Circuit Ampacity 12 14 14 16
Fan motor (F.L.A.) 0.52 0.52 0.63 0.926
(R.L.A) 7.8 10.1 9.30 10.82
Compressor
(L.R.A) 9.2 12 47 56
Indoor unit - Remote Indoor unit - Remote
controller: (Wireless) controller: (Wireless)
Control voltage Indoor unit - Outdoor Indoor unit - Outdoor
unit: DC12-24V (Polar) unit: AC115V
Outside van Insulation .
Pipe diameter thickness | [nsulation mate-
ness rial
inch (mm)
we 0.0315
For liquid 1/4 (6.35) (0.8) 5/16 (8)
MSZ-
AOS2NA | 3/8 (9.52) 08) 5/16 (8) | Heat resisting
MS-AO9WA ‘ foam plastic
0.045 Specific
For gas | MSZ- ravit .
A15/17NA 0.0315 gravity
MSY-A15/ | 1/2 (12.7) (0.8) 5/16 (8)
17NA ,
MS-A12WA
a MSZ-A09/1 2/1 5/17NA
Limits MSY-A15/417NA MS-A09/12WA
Pipe length 65ft. (20 m) max. 65ft. (20 m) max.
Height difference 40 ft. (12 m) max. 35 ft. (10 m) max.
m), additional refrigerant No. of bends 10 max. 10 max.
Up to 25 ft. (7m) No additional charge is
required.
Pipe length
: Additional charge is required.
Exceeding 26 ft. (7m) (Refer to the table below.)
MSZ-A09/12/15/17NA
1.62 oz each 5 ft. (30g/m)
Refrigerant to be MSY-A1S/17NA
added
MS-A09/12WA 1.08 oz. each 5 ft. (20g/m)